Review ArticleUltrasound Assessment of Acute Kidney InjuryKelahan, Linda C. MD*; Desser, Terry S. MD*; Troxell, Megan L. MD, PhD†; Kamaya, Aya MD*Author Information Departments of *Radiology and †Pathology, Stanford University Hospital. Received for publication May 11, 2018; accepted July 23, 2018. Address correspondence to: Linda C. Kelahan, MD, Stanford University School of Medicine, 300 Pasteur Dr, Room H1307, Stanford, CA 94305 (e-mail: firstname.lastname@example.org). Ultrasound Quarterly: June 2019 - Volume 35 - Issue 2 - p 173-180 doi: 10.1097/RUQ.0000000000000389 Buy Metrics Abstract Ultrasound assessment of the kidneys in patients with renal impairment has been described in various ways in the critical care, nephrology, and radiology literature, resulting in a somewhat heterogeneous picture of the gray-scale and Doppler ultrasound manifestation of acute kidney injury (AKI). Given that ultrasound assessment can potentially identify reversible causes of AKI or identify underlying chronic kidney disease, it is important for radiologists to be aware of the common etiologies of AKI and the spectrum of ultrasound findings. We review the definition and etiologies of renal injury and introduce the ultrasound SERVeillance framework—assessment of renal size, echogenicity, renal hilum, and vascularity—for the imaging assessment of AKI. Copyright © 2018 Wolters Kluwer Health, Inc. All rights reserved.